Surrounding housing for a cat litter box



FIG. 1 is a perspective view showing our design;

FIG. 2 is a right side elevation view of the litter box with the left side being a mirror image;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a surrounding housing for a cat litter box, as shown and described. 